Box



April 18, 19. 3. R L; BANGS ET AL 1,904,400

' BOX Filed July 24, 1931 INVENTOR lPo/p/a L. 5009: M/fi/lb'm A. Henna/non BY %o/ ATTOR EY Patented Apr.

NITED STATES PATENT OFFICE RALPH I BANGS, OF WAKEFIELD, AND WILLIAI A. mean, BRIGHTON,

IASSACHUSET'I'S BOX -App11cation'fl1ed. July 24,

The present invention relates to boxes, and

more particularly boxes which are to ma ntain constant temperature. Little attention "has been paid in the past to the method of insulating boxes and the means generally emplo ed are crude and unstandardlze d.

Iii the present invention, the ob]ect to provide a well insulated box which is not bulky and which may as well be knocked down or folded for shipment in quantities if desired. The construction of the box is such that it is firmly sealed and tends to prevent leakage of cold or hot air from the box. In this manner if such methods of keeping cool 15 by using a refrigerant is employed the cold gas of therefrigerant may be kept inside the box. 9

The box is provided witlra liner and may be used that way to maintain an even greater eficiency in maintaining original tempera tures. Another feature of the construction is the provision of vertical flutin in the internal walls whereby the cold an warm gases ma travel in columns up and down the box and provide internal circulation to maintain constant and even temperature throughout the entire container.

Other objects and aims of the invention will be understood from the following description of an embodiment of theinvention in connection with the drawing in which:

Figure 1 shows a perspective view of the box opened. 1

Figure "2 shows a modification with the liner partially broken away.

Figure 3 shows the lining element. 7 Figure 4 shows in part thelining element and a part section therethrou h.

' Figure 5 shows a detail 0 the box construction to provide a seal.

Figure 6 shows a section through the wall of the box of Figure 1.

In Figure 1, the box 1 may be of any desired shape, and is compose preferably of 5 an outer corrugated cardboard 2, next to which is placed a kraft paper 3, and then one or more layers 4, of batting or webs of a composite of absorbent cotton fibres, rubberized fibres and jute, joined together with a great amount of dead air spaces between. On the m1. sci-m No. 558,948.

inside there may be a corrugated layer 5, and both kraft paper 6 and asphaltum 7, if necessary.

f The box may be joined at one corner 8 by a binding strip 9. The top 10, of the box may also be bound to the body of the box at the hinging edge in such -a manner that the inside top of the box extends downwards from the top, ed e of the side walls. The top of the box may be a simple corrugated cover as shown in Figure 5, but ma also be constructed as the sides indicate in Figure 6. In either case a top pad'll', may be used as shown in Figure 5, composed of the same material and in the same manner as the liner 12 as which will presently bedescribed. The to of the box and likewise the bottom which 1s constructed in the same way, is hinged closely at its external edge to the side of the box so that when closed the internal edge'brings pressure to bear upon the liner 12 of the box which extends up as high or nearly as high as the sides of the box itself, thus sealing the cold or hot air enclosed in the box and preventing its escape; This is shown in-Fi re 5 where the edge of the liner 12 dentsjin t e top pad 11. p

In Figure 2 the removable liner 12 is shown partially broken away, and it will be noted that here the walls 13 are composed of a 80 corrugated cardboard lined on both sides of the corrugation and an internal extended corrugation '14 which is unlined or uncovered and which has the flutings thereof, extending up and down in the box. These flutings provide a passage and column to promote circulation of the cold air or CO where so called dry ice is used.

In Figure 3 is shown the liner which may be employed. This liner is lapped at 15 and riveted by rivets or brads 16,16. The construction of the liner is shown in .Figure 4 and comprises an innerbatting 17 as described above, two outer covers 18 and 19 of suitable paper, an inner heavier paper 20, or cardboard which is scored at the corners 21, so that ,the rectangular shape may be obtained, and a paper bag cover 22 which is drawn over the whole strip before w.riveting. The inner cardboard serves as a surface 100 whereby the rectan lan form may be obtained without buck ing or change ofshape of the batting of the liner.

While we have used batting in many cases,

a ,wadding of the same composition as the battin but havin a top and bottom sheet forme b a sizing impre ating the top and bottom fi res may be use In place of making the batting or wadding as described above, the insulating material may be of cellulose wood pulp ma e in sheets having a soft nap and layed together or the wood (pulp may be shredded in fibre form and ma e as battirig or wedding.

aving now described our invention, we

\ claim:

1. A box adapted to contain articles and keep them in a warm or cold state, comprising a casing of insulated walls composed of corru ated cardboard with an insulating batting tween and removable insulating liner having a layer of insulating batting.

2. A box adapted to contain articles and keep them in a warm or cold state comprising corrugated walls havin insulating means therebetween, an insulatmg liner approximately the same hei ht as the walls and lining the same, top and ottom pads restin on the edge of the said linerand to an bottom covers hinged at the externa side whereb the pads may bring pressure on the liner e e and effectively seal the same.

3. A ox adapted to contain articles and keep them in a warm or cold state comprising an insulating liner approximately the same height as the walls and lining the same, top and bottom pads resting on the edge of said liner, and top and bottom covers hinged at the external side whereby the pads may bring 7 pressure on the liner edge and effectively seal the same,

RALPH L. BAN GS.

WILLIAM A HERMANSON. 

